Quality Assurance ASTM A229 Smooth Surface Oil Tempered Wire for Suspension Springs

Quality Assurance ASTM A229 Smooth Surface Oil Tempered Wire for Suspension Springs. High Fatigue Resistance: Oil quenched and tempered wire offers superior fatigue, elasticity, and heat resistance for long-lasting performance. Wide Calibre Range: Available in diameters from 0.5mm to 20.0mm to suit various spring applications. High Production Capacity: Monthly output reaches 3000 tons with 4 oil-tempering lines and 2 induction heating lines. Comprehensive Certifications: Certified with ISO9001, ISO45001, ISO14001, and IATF16949 for quality and safety management. Flexible Customization: Supports full customization from designs or samples, including OEM and ODM services. Global Technical Support: On-site technical support provided by regular visits from technical and sales teams. Free Sample Availability: Limited quantity free samples offered for quality evaluation before bulk orders. Strict Quality Inspection: 100% visual and functional inspection of finished products with traceable raw materials.